# List of mayors of Petersham

People who served as the mayor of the Municipality of Petersham are:
| Mayors | Party | Party | Term start | Term end |
| William Pigott | n/a | n/a | 14 February 1872 | 10 February 1880 |
| Michael McMahon | n/a | n/a | 10 February 1880 | 10 February 1881 |
| William Henry Paling | n/a | n/a | 10 February 1881 | 15 February 1882 |
| John Gelding | n/a | n/a | 15 February 1882 | 15 February 1884 |
| Henry Hughes | n/a | n/a | 15 February 1884 | 11 February 1885 |
| William Davis | n/a | n/a | 11 February 1885 | 10 February 1886 |
| John Wheeler | n/a | n/a | 10 February 1886 | 11 February 1891 |
| Llewellyn Jones | n/a | n/a | 11 February 1891 | 13 February 1894 |
| Alfred Rofe | n/a | n/a | 13 February 1894 | 12 February 1897 |
| Percy Hordern | n/a | n/a | 12 February 1897 | 10 February 1899 |
| Joseph Wetherill Cockbaine | n/a | n/a | 10 February 1899 | 15 February 1901 |
| Henry Davis | n/a | n/a | 15 February 1901 | 9 February 1903 |
| Percy Hordern | n/a | n/a | 9 February 1903 | 16 February 1905 |
| Frederick Lawrence Langdon | n/a | n/a | 16 February 1905 | February 1908 |
| Percy Hordern | n/a | n/a | February 1908 | February 1910 |
| Tom Hoskins | n/a | n/a | February 1910 | February 1912 |
| Richard Barry | n/a | n/a | February 1912 | 17 September 1912 |
| John Wheeler | n/a | n/a | 20 September 1912 | 31 January 1914 |
| Charles Henry Crammond | n/a | n/a | 3 February 1914 | 2 February 1915 |
| Tom Hoskins | n/a | n/a | 2 February 1915 | February 1916 |
| John Henry Albert Weekley | n/a | n/a | February 1916 | 11 February 1918 |
| Richard Gendle | n/a | n/a | 11 February 1918 | February 1920 |
| Abraham Cropper | n/a | n/a | February 1920 | December 1920 |
| John Allworth Clark | n/a | n/a | December 1920 | December 1921 |
| William John Bastion | n/a | n/a | December 1921 | 7 December 1922 |
| David Robert Cooper | n/a | n/a | 7 December 1922 | December 1923 |
| Joseph Johnson | n/a | n/a | December 1923 | December 1924 |
| Walter Lawrence Maundrell | n/a | n/a | December 1924 | December 1925 |
| John Henry Albert Weekley | n/a | n/a | December 1925 | December 1926 |
| Gilbert Barry | n/a | n/a | December 1926 | December 1927 |
| Arthur Whiteley | n/a | n/a | December 1927 | December 1928 |
| Thomas Casserley | n/a | n/a | December 1928 | December 1929 |
| James Bain | n/a | n/a | December 1929 | December 1930 |
| Ernest Albert McKinley | n/a | n/a | December 1930 | January 1932 |
| Arthur Whiteley | n/a | n/a | January 1932 | December 1932 |
| Joseph Johnson | n/a | n/a | December 1932 | December 1933 |
| Jacob Lauder Raith | n/a | n/a | December 1933 | December 1934 |
| Walter Lawrence Maundrell | n/a | n/a | December 1934 | December 1935 |
| John Alexander Stewart | n/a | n/a | December 1935 | December 1936 |
| Robert John Hoskins | n/a | n/a | December 1936 | December 1937 |
| Joseph Johnson | n/a | n/a | December 1937 | December 1938 |
| Walter Lawrence Maundrell | n/a | n/a | December 1938 | December 1939 |
| Fred Cahill | | Labor | December 1939 | December 1940 |
| Sydney Hastie Bain | | Labor | December 1940 | December 1941 |
| John Friel Laxton | | | December 1941 | December 1943 |
| Hilton Gregory Clifford | | | December 1943 | December 1944 |
| John Friel Laxton | | | December 1944 | 31 December 1948 |